Stadium: Center A Round: 54 Ground: Hardcourt outdoor
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/07 01:00 | Tomohiro Masabayashi v Daisuke Sumizawa | 3-6,3-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/06 01:00 | Keisuke Saitoh v Tomohiro Masabayashi | 4-6,6-3,1-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/04 01:00 | Tomohiro Masabayashi v Huang, Chih Chi | 6-3,6-3 |
| ITF M25 Tainan | 2023/08/24 02:00 | Ergi Kirkin v Tomohiro Masabayashi | 6-4,6-3 |
| ITF M25 Tainan | 2023/08/23 04:55 | Lo, Chien Hsun v Tomohiro Masabayashi | 7-5,5-7,3-6 |
| ITF M25 Tainan | 2023/08/17 02:00 | Tomohiro Masabayashi v Makoto Ochi | 6-7,1-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/27 05:00 | Nathan Anthony Barki v Tomohiro Masabayashi | 6-2,6-4 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/17 02:00 | Omar Jasika v Tomohiro Masabayashi | 6-1,6-1 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/10 01:00 | Horie, Toru v Fields, Omar | 6-3,3-6,9-11 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/04 00:55 | Hiroki Sakagawa v Fields, Omar | 5-7,6-3,13-11 |
| ITF - M15 Nakhon Si Thammarat - Qualif. | 2023/08/27 03:30 | Mitsuki Wei Kang Leong v Fields, Omar | 6-2,6-4 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/24 05:30 | Fields, Omar v Kovapitukted, Palaphoom | 6-7,4-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/23 05:35 | Nitin Kumar Sinha v Fields, Omar | 5-7,1-6 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/21 05:55 | Linh Giang Trinh v Fields, Omar | 5-7,6-4,7-10 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/20 06:40 | Fields, Omar v Patrik Oplustil | 6-3,6-4 |
| UTR Pro Carrara | 2023/08/12 02:00 | Tai Leonard Sach v Fields, Omar | 6-4,7-6 |